Fast-API Documentation

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Privacy Policy ​

Effective Date: June 8, 2026

This Privacy Policy is established by Jiuxi Limited (hereinafter referred to as "we") and applies to the handling of your personal information when you use the Fast-API (https://fast-api.org) platform (hereinafter referred to as "this platform"). We value your privacy protection, please read this policy carefully.

1. Information Collection ​

We may collect the following types of information:

  1. Account Information: Username and email address provided during registration.
  2. Usage Data: API call records, request frequency, model usage, token consumption.
  3. Technical Information: IP address, device details, browser type, operating system.
  4. Payment Information: Top-up records and transaction history (no full payment credentials stored).

2. Use of Information ​

The information collected is used for the following purposes:

  1. Providing and maintaining the API relay service.
  2. Billing and account management.
  3. Monitoring and preventing abusive behaviors (including unusually high-frequency requests, malicious attacks, etc.).
  4. Improving service quality and user experience.
  5. Complying with legal and regulatory requirements.

3. Information Storage and Security ​

  1. Your data is stored on secure servers, and we take reasonable technical and management measures to protect data security.
  2. We will not sell or rent your personal information to third parties.
  3. Data retention period: during the lifetime of your account and 30 days after cancellation (for compliance auditing).

4. Information Sharing ​

Except for the following circumstances, we will not share your personal information with third parties:

  1. With your explicit authorization.
  2. In accordance with legal or regulatory requirements or requests from government agencies.
  3. If necessary to prevent fraud or to ensure platform security.

5. User Rights ​

You have the right to:

  1. View and export your account data.
  2. Request deletion of your personal information (subject to platform terms of service).
  3. Withdraw authorization or cancel your account.
  4. Object to data processing.

6. Cookies ​

  1. We use cookies to maintain session status and improve user experience.
  2. You can manage or disable cookies through browser settings, but this may affect platform functionality.

7. Policy Updates ​

We may update this privacy policy from time to time. The updated policy will be published on this page; we recommend that you review it periodically.

8. Contact Us ​

For privacy-related inquiries, please contact us via: